diff options
Diffstat (limited to 'bsd-user/bsd-mem.c')
| -rw-r--r-- | bsd-user/bsd-mem.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/bsd-user/bsd-mem.c b/bsd-user/bsd-mem.c new file mode 100644 index 0000000000..2ab1334b70 --- /dev/null +++ b/bsd-user/bsd-mem.c @@ -0,0 +1,104 @@ +/* + * memory management system conversion routines + * + * Copyright (c) 2013 Stacey D. Son + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses/>. + */ +#include "qemu/osdep.h" +#include "qemu.h" +#include "qemu-bsd.h" + +struct bsd_shm_regions bsd_shm_regions[N_BSD_SHM_REGIONS]; + +abi_ulong target_brk; +abi_ulong initial_target_brk; + +void target_set_brk(abi_ulong new_brk) +{ + target_brk = TARGET_PAGE_ALIGN(new_brk); + initial_target_brk = target_brk; +} + +void target_to_host_ipc_perm__locked(struct ipc_perm *host_ip, + struct target_ipc_perm *target_ip) +{ + __get_user(host_ip->cuid, &target_ip->cuid); + __get_user(host_ip->cgid, &target_ip->cgid); + __get_user(host_ip->uid, &target_ip->uid); + __get_user(host_ip->gid, &target_ip->gid); + __get_user(host_ip->mode, &target_ip->mode); + __get_user(host_ip->seq, &target_ip->seq); + __get_user(host_ip->key, &target_ip->key); +} + +abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd, + abi_ulong target_addr) +{ + struct target_shmid_ds *target_sd; + + if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) { + return -TARGET_EFAULT; + } + + target_to_host_ipc_perm__locked(&(host_sd->shm_perm), + &(target_sd->shm_perm)); + + __get_user(host_sd->shm_segsz, &target_sd->shm_segsz); + __get_user(host_sd->shm_lpid, &target_sd->shm_lpid); + __get_user(host_sd->shm_cpid, &target_sd->shm_cpid); + __get_user(host_sd->shm_nattch, &target_sd->shm_nattch); + __get_user(host_sd->shm_atime, &target_sd->shm_atime); + __get_user(host_sd->shm_dtime, &target_sd->shm_dtime); + __get_user(host_sd->shm_ctime, &target_sd->shm_ctime); + unlock_user_struct(target_sd, target_addr, 0); + + return 0; +} + +void host_to_target_ipc_perm__locked(struct target_ipc_perm *target_ip, + struct ipc_perm *host_ip) +{ + __put_user(host_ip->cuid, &target_ip->cuid); + __put_user(host_ip->cgid, &target_ip->cgid); + __put_user(host_ip->uid, &target_ip->uid); + __put_user(host_ip->gid, &target_ip->gid); + __put_user(host_ip->mode, &target_ip->mode); + __put_user(host_ip->seq, &target_ip->seq); + __put_user(host_ip->key, &target_ip->key); +} + +abi_long host_to_target_shmid_ds(abi_ulong target_addr, + struct shmid_ds *host_sd) +{ + struct target_shmid_ds *target_sd; + + if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) { + return -TARGET_EFAULT; + } + + host_to_target_ipc_perm__locked(&(target_sd->shm_perm), + &(host_sd->shm_perm)); + + __put_user(host_sd->shm_segsz, &target_sd->shm_segsz); + __put_user(host_sd->shm_lpid, &target_sd->shm_lpid); + __put_user(host_sd->shm_cpid, &target_sd->shm_cpid); + __put_user(host_sd->shm_nattch, &target_sd->shm_nattch); + __put_user(host_sd->shm_atime, &target_sd->shm_atime); + __put_user(host_sd->shm_dtime, &target_sd->shm_dtime); + __put_user(host_sd->shm_ctime, &target_sd->shm_ctime); + unlock_user_struct(target_sd, target_addr, 1); + + return 0; +} |